Acid-PEG8-t-butyl ester

Mal-PEG3-PFP

Mal-amido-PEG5-alkyne

Azido-PEG11-t-butyl ester，Azido-PEG11-Boc

DBCO-PEG24-O-amine，DBCO-PEG24-O-NH2

Mal-amido-PEG8-acid，Mal-amido-PEG8-C2-acid

DBCO-PEG3-amine，DBCO-PEG3-NH2

Azido-PEG36-t-butyl ester，Azido-PEG36-Boc

Mal-PEG8-acid

Carboxy-PEG5-sulfonic acid

Ald-Ph-PEG24-acid

Mal-amido-PEG12-TFP ester

Azido-PEG2-CH2CO2-t-Bu，Azido-PEG2-C1-Boc

Acid-PEG4-mono-methyl ester

Azido-PEG3-CH2CO2-t-Bu，Azido-PEG3-C-Boc

Azido-PEG4-NHS ester

Ald-CH2-PEG3-azide

Ald-Ph-PEG4-t-butyl ester，Ald-Ph-PEG4-Boc

Mal-PEG8-alcohol

Azido-PEG9-t-butyl ester，Azido-PEG9-Boc